Ok now, these are just suggestions. I haven't actually tried it out yet but I've been told that this is a good setup.

4499s with purple/red spring pos/neg.

I asked about the purple, thinking it was too stiff, and was told it helps bring the torque out. I've also been told narrowing the brush on the trailing edge only helps with efficiency. I'll report more as soon as I've tried some of these tips.

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